#ac_db {
    width: 200px;
    margin-top: 20px;
}

#ac_db + ul {
    width: 100%;
    max-height: 200px;
    overflow-y: scroll;
}

.activity-serch-input {
    border: 1px solid rgba(218, 206, 206, 0.5);
    padding: 10px;
    margin-top: 15px;
}